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tor-android/external/privoxy/w32svrapi.c

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adding in privoxy directly to Orbot repo
2012-05-03 18:32:18 +00:00
const char w32_svrapi_rcs[] = "$Id: w32svrapi.c,v 1.2 2006/09/20 03:15:43 david__schmidt Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/w32svrapi.c,v $
*
* Purpose : Win32 Services API for Privoxy.
* Provides the implementation of an Win32 service to
* allow the code to directly register and run as a
* native Windows service application.
*
* Since Win9x/ME platforms don't provide or support
* running programs as services, this code uses runtime
* loading and calling of the Win32 Service API, to
* prevent the possibility of getting "entry point not
* found" type errors on unsupported platforms. This adds
* a little more complexity to the code, but it is worth
* doing to provide that isolation.
*
* Copyright : Written by and Copyright (C) 2003, 2006 members of
* the Privoxy team. http://www.privoxy.org/
*
* Written by and Copyright (C) 2003 Ian Cummings
* <ian_a_c@hotmail.com>
*
* Special thanks to Mates Dol<EFBFBD>k <matesek@post.cz> for
* some very helpful feedback and suggestions during the
* development of this code.
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* The GNU General Public License should be included with
* this file. If not, you can view it at
* http://www.gnu.org/copyleft/gpl.html
* or write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Revisions :
* $Log: w32svrapi.c,v $
* Revision 1.2 2006/09/20 03:15:43 david__schmidt
* Clean up a variable type declaration which just
* happened to work...
*
* Revision 1.1 2006/08/12 03:54:37 david__schmidt
* Windows service integration
*
*
*
*********************************************************************/
#include "config.h"
#ifdef _WIN32
#include <stdio.h>
#ifndef STRICT
#define STRICT
#endif
#include <windows.h>
#include <process.h>
#ifndef _WIN_CONSOLE
# include "w32log.h"
#endif /* ndef _WIN_CONSOLE */
#include "w32svrapi.h"
const char w32_svrapi_h_rcs[] = W32_SVRAPI_H_VERSION;
/* Only the ANSI Win32 APIs are used at this time. If for some
* reason, we're building under unicode then we must stop
*/
#ifdef UNICODE
#error "Privoxy interface to Win32 Services only runs under ANSI builds. Unicode is not supported at present, but you can volunteer for the job if you like! :)"
#endif
/* Default to not running as service, unless the command line says so */
BOOL bRunAsService = FALSE;
/* According to the Win32 docs for CreateService,
* the max length for the service name is 256 chars
*/
char szThisServiceName[260];
static BOOL get_service_description(const char *pszServiceName, char *pszDisplayName, DWORD dwDispSize);
static void WINAPI privoxy_w32_service_start(DWORD dw, LPSTR* psz);
static void WINAPI privoxy_w32_service_handler(DWORD dwOpcode);
SERVICE_TABLE_ENTRY w32ServiceDispatchTable[] = {{"", privoxy_w32_service_start}, {NULL, NULL}};
static SERVICE_STATUS_HANDLE hSrv_status = 0;
static SERVICE_STATUS srv_status;
/*********************************************************************
* This function returns TRUE if we are running on an OS that can
* support services, like NT, etc. It returns FALSE for Win9x/ME.
*********************************************************************/
static BOOL HasServiceControlManager()
{
HMODULE hDll;
FARPROC pFunc;
SC_HANDLE hScm;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
printf("Can't load Advapi32.dll -- LoadLibrary failed!\n");
return FALSE;
}
/* Get the address of the ANSI OpenSCManager function, or return a failure status */
pFunc = GetProcAddress(hDll, "OpenSCManagerA");
if (pFunc == NULL)
{
printf("Can't find OpenSCManagerA -- GetProcAddress failed!\n");
FreeLibrary(hDll);
return FALSE;
}
/* Try and connect to the SCM. If it fails check and see if the error
* code is ERROR_CALL_NOT_IMPLEMENTED, which means:
* "This function is not supported on this system."
*/
hScm = (SC_HANDLE)(*pFunc)(NULL, NULL, SC_MANAGER_CONNECT);
if (hScm == NULL)
{
DWORD dwErr = GetLastError();
if (dwErr == ERROR_CALL_NOT_IMPLEMENTED)
{
/* Expected error under Win9x/Me, so don't print any debug info
* here as we'll leave that up to the calling function to do
*/
FreeLibrary(hDll);
return FALSE;
}
printf("Call to OpenSCManager failed -- GetLastError() returned %lu!\n", dwErr);
FreeLibrary(hDll);
return FALSE;
}
w32_close_service_handle(hScm);
/* OpenSCManager function exists and works, so we're on an NT type platform */
FreeLibrary(hDll);
return TRUE;
} /* -END- HasServiceControlManager */
BOOL CanSystemSupportServices()
{
BOOL bHasScm = HasServiceControlManager();
return bHasScm;
} /* -END- CanSystemSupportServices */
/*********************************************************************
*
* The Service functions are defined in <winsvc.h> which is where
* the declarations used in this file are taken from
*
*********************************************************************/
/*********************************************************************
* Open a connection to the service control manager
*********************************************************************/
SC_HANDLE w32_open_sc_manager(
LPCTSTR lpMachineName, /* computer name */
LPCTSTR lpDatabaseName, /* SCM database name */
DWORD dwDesiredAccess) /* access type */
{
HMODULE hDll = NULL;
SC_HANDLE hScm = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
/* Load the DLL with the SCM functions or return failure */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return NULL;
}
/* Get the address of the ANSI OpenSCManager function, or return failure */
pFunc = GetProcAddress(hDll, "OpenSCManagerA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return NULL;
}
/* Call the SCM function, and save the error code */
hScm = (SC_HANDLE)(*pFunc)(lpMachineName, lpDatabaseName, dwDesiredAccess);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return hScm;
} /* -END- w32_open_sc_manager */
BOOL w32_close_service_handle(
SC_HANDLE hSCObject) /* handle to service or SCM object */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
BOOL bRet;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return FALSE;
}
/* Get the address of the CloseServiceHandle function, or return a failure status */
pFunc = GetProcAddress(hDll, "CloseServiceHandle");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return FALSE;
}
/* Close the handle, and save the error code */
bRet = (BOOL)(*pFunc)(hSCObject);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return bRet;
} /* -END- w32_close_service_handle */
/*********************************************************************
* Open a service
*********************************************************************/
SC_HANDLE w32_open_service(
SC_HANDLE hSCManager, /* handle to SCM database */
LPCTSTR lpServiceName, /* service name */
DWORD dwDesiredAccess) /* access */
{
HMODULE hDll = NULL;
SC_HANDLE hSrv = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
/* Load the DLL with the SCM functions or return failure */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return NULL;
}
/* Get the address of the ANSI OpenService function, or return failure */
pFunc = GetProcAddress(hDll, "OpenServiceA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return NULL;
}
/* Call the SCM function, and save the error code */
hSrv = (SC_HANDLE)(*pFunc)(hSCManager, lpServiceName, dwDesiredAccess);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return hSrv;
} /* -END- w32_open_service */
SC_HANDLE w32_create_service(
SC_HANDLE hSCManager, /* handle to SCM database */
LPCTSTR lpServiceName, /* name of service to start */
LPCTSTR lpDisplayName, /* display name */
DWORD dwDesiredAccess, /* type of access to service */
DWORD dwServiceType, /* type of service */
DWORD dwStartType, /* when to start service */
DWORD dwErrorControl, /* severity of service failure */
LPCTSTR lpBinaryPathName, /* name of binary file */
LPCTSTR lpLoadOrderGroup, /* name of load ordering group */
LPDWORD lpdwTagId, /* tag identifier */
LPCTSTR lpDependencies, /* array of dependency names */
LPCTSTR lpServiceStartName, /* account name */
LPCTSTR lpPassword) /* account password */
{
HMODULE hDll = NULL;
SC_HANDLE hSrv = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
/* Load the DLL with the SCM functions or return failure */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return NULL;
}
/* Get the address of the ANSI CreateService function, or return failure */
pFunc = GetProcAddress(hDll, "CreateServiceA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return NULL;
}
/* Call the SCM function, and save the error code */
hSrv = (SC_HANDLE)(*pFunc)(hSCManager, /* handle to SCM database */
lpServiceName, /* name of service to start */
lpDisplayName, /* display name */
dwDesiredAccess, /* type of access to service */
dwServiceType, /* type of service */
dwStartType, /* when to start service */
dwErrorControl, /* severity of service failure */
lpBinaryPathName, /* name of binary file */
lpLoadOrderGroup, /* name of load ordering group */
lpdwTagId, /* tag identifier */
lpDependencies, /* array of dependency names */
lpServiceStartName, /* account name */
lpPassword); /* account password */
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return hSrv;
} /* -END- w32_create_service */
BOOL w32_delete_service(
SC_HANDLE hService) /* handle to service */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
BOOL bRet;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return FALSE;
}
/* Get the address of the DeleteService function, or return a failure status */
pFunc = GetProcAddress(hDll, "DeleteService");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return FALSE;
}
/* Close the handle, and save the error code */
bRet = (BOOL)(*pFunc)(hService);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return bRet;
} /* -END- w32_delete_service */
BOOL w32_query_service_config(
SC_HANDLE hService, /* handle to service */
LPQUERY_SERVICE_CONFIG lpServiceConfig, /* buffer */
DWORD cbBufSize, /* size of buffer */
LPDWORD pcbBytesNeeded) /* bytes needed */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
BOOL bRet;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return FALSE;
}
/* Get the address of the QueryServiceConfig function, or return a failure status */
pFunc = GetProcAddress(hDll, "QueryServiceConfigA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return FALSE;
}
/* Close the handle, and save the error code */
bRet = (BOOL)(*pFunc)(hService, lpServiceConfig, cbBufSize, pcbBytesNeeded);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return bRet;
} /* -END- w32_query_service_config */
BOOL w32_start_service_ctrl_dispatcher(
CONST LPSERVICE_TABLE_ENTRY lpServiceTable) /* service table */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
BOOL bRet;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return FALSE;
}
/* Get the address of the StartServiceCtrlDispatcher function, or return a failure status */
pFunc = GetProcAddress(hDll, "StartServiceCtrlDispatcherA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return FALSE;
}
/* Close the handle, and save the error code */
bRet = (BOOL)(*pFunc)(lpServiceTable);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return bRet;
} /* -END- w32_start_service_ctrl_dispatcher */
SERVICE_STATUS_HANDLE w32_register_service_ctrl_handler(
LPCTSTR lpServiceName, /* service name */
LPHANDLER_FUNCTION lpHandlerProc) /* handler function */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
SERVICE_STATUS_HANDLE hServStat = (SERVICE_STATUS_HANDLE)0;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return hServStat;
}
/* Get the address of the RegisterServiceCtrlHandler function, or return a failure status */
pFunc = GetProcAddress(hDll, "RegisterServiceCtrlHandlerA");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return hServStat;
}
/* Close the handle, and save the error code */
hServStat = (SERVICE_STATUS_HANDLE)(*pFunc)(lpServiceName, lpHandlerProc);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return hServStat;
} /* -END- w32_register_service_ctrl_handler */
BOOL w32_set_service_status(
SERVICE_STATUS_HANDLE hServiceStatus, /* service status handle */
LPSERVICE_STATUS lpServiceStatus) /* status buffer */
{
HMODULE hDll = NULL;
FARPROC pFunc = NULL;
DWORD dwLastErr = 0;
BOOL bRet;
/* Load the DLL with the SCM functions or return a failure status */
hDll = LoadLibrary("Advapi32.dll");
if (hDll == NULL)
{
return FALSE;
}
/* Get the address of the SetServiceStatus function, or return a failure status */
pFunc = GetProcAddress(hDll, "SetServiceStatus");
if (pFunc == NULL)
{
FreeLibrary(hDll);
return FALSE;
}
/* Close the handle, and save the error code */
bRet = (BOOL)(*pFunc)(hServiceStatus, lpServiceStatus);
dwLastErr = GetLastError();
/* Release the library and then restore the last error
* code, in case FreeLibrary altered it.
*/
FreeLibrary(hDll);
SetLastError(dwLastErr);
return bRet;
} /* -END- w32_set_service_status */
static void display_win32_msg(BOOL bIsError, char *msg)
{
#ifdef _WIN_CONSOLE
printf("%s", msg);
#else
if (bIsError)
{
MessageBox(NULL, msg, "Privoxy Error",
MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
}
else
{
MessageBox(NULL, msg, "Privoxy Information",
MB_OK | MB_ICONINFORMATION | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
}
#endif
} /* -END- display_win32_msg */
static BOOL get_service_description(const char *pszServiceName, char *pszDisplayName, DWORD dwDispSize)
{
/*********************************************************************
* Create a simple display name
*********************************************************************/
strcpy(pszDisplayName, "Privoxy (");
strncat(pszDisplayName, pszServiceName, dwDispSize - strlen(pszDisplayName) - 2);
strcat(pszDisplayName, ")");
return TRUE;
}
BOOL install_service(const char *service_name)
{
char szModule[(MAX_PATH*2)+1];
char szDisplayName[MAX_PATH+2];
SC_HANDLE hSCM;
SC_HANDLE hService;
/*********************************************************************
* First check if this system can support a service architecture
*********************************************************************/
if (!CanSystemSupportServices())
{
display_win32_msg(TRUE, "This system doesn't support installing Privoxy as a service.\nWinNT/2000/XP are required for this feature.\n");
return FALSE;
}
/* Use a default service name if none was supplied */
if ((service_name == NULL) || (strlen(service_name) == 0))
{
service_name = "privoxy";
}
/*********************************************************************
* Open a handle to the Service Control Manager with full access rights
*********************************************************************/
hSCM = w32_open_sc_manager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM == NULL)
{
display_win32_msg(TRUE, "Can't open Service Control Manager - Service install failed!\n Administrator rights are required to create a service.\n");
return FALSE;
}
/*********************************************************************
* Work out the full image path plus command line for the service
* We'll temporarily use szDisplayName as a second buffer.
*********************************************************************/
GetModuleFileName(NULL, szDisplayName, MAX_PATH);
sprintf(szModule, "\"%s\" --service", szDisplayName);
/*********************************************************************
* Get the display name for the service
*********************************************************************/
get_service_description(service_name, szDisplayName, sizeof(szDisplayName)/sizeof(char));
/*********************************************************************
* Create the service
*********************************************************************/
hService = w32_create_service(hSCM,
service_name, /* the internal service name */
szDisplayName, /* the display name */
SERVICE_ALL_ACCESS, /* get full access during creation */
SERVICE_WIN32_OWN_PROCESS /* run in our own process */
#ifndef _WIN_CONSOLE
+ SERVICE_INTERACTIVE_PROCESS /* GUI also wants interactive rights */
#endif
,
SERVICE_DEMAND_START, /* For now, only start when asked to */
SERVICE_ERROR_NORMAL, /* Normal error handling by the SCM */
szModule, /* The executable service file */
NULL, /* No load order info needed */
NULL, /* No load order info needed */
NULL, /* No dependencies */
NULL, /* Default to LocalSystem... */
NULL); /* ...which doesn't require a password */
if (hService == NULL)
{
display_win32_msg(TRUE, "Can't install service!\n");
w32_close_service_handle(hSCM);
return FALSE;
}
display_win32_msg(FALSE, "Service was successfully created.\n*** IMPORTANT NOTE: You should now use the Services control panel to\n*** configure the startup type and user account details for the service.\n\n");
/* tidy up */
w32_close_service_handle(hService);
w32_close_service_handle(hSCM);
return TRUE;
} /* -END- install_service */
BOOL uninstall_service(const char *service_name)
{
char szDisplayName[MAX_PATH+2];
SC_HANDLE hSCM;
SC_HANDLE hService;
BOOL bResult = FALSE;
/*********************************************************************
* First check if this system can support a service architecture
*********************************************************************/
if (!CanSystemSupportServices())
{
display_win32_msg(TRUE, "This system doesn't support installing Privoxy as a service.\nWinNT/2000/XP are required for this feature.\n");
return FALSE;
}
/* Use a default service name if none was supplied */
if ((service_name == NULL) || (strlen(service_name) == 0))
{
service_name = "privoxy";
}
/*********************************************************************
* Open a handle to the Service Control Manager with full access rights
*********************************************************************/
hSCM = w32_open_sc_manager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
if (hSCM == NULL)
{
display_win32_msg(TRUE, "Can't open Service Control Manager - Service uninstall failed!\n Administrator rights are required to delete a service.\n");
return FALSE;
}
/*********************************************************************
* Get the display name for the service
*********************************************************************/
get_service_description(service_name, szDisplayName, sizeof(szDisplayName)/sizeof(char));
/*********************************************************************
* Open and then delete the service
*********************************************************************/
hService = w32_open_service(hSCM, service_name, DELETE);
if (hService == NULL)
{
display_win32_msg(TRUE, "Can't open service for delete access rights!\n");
w32_close_service_handle(hSCM);
return FALSE;
}
if (w32_delete_service(hService))
{
display_win32_msg(FALSE, "Service was deleted successfully.\n");
bResult = TRUE;
}
else
{
display_win32_msg(TRUE, "Service could not be deleted!\n");
bResult = FALSE;
}
w32_close_service_handle(hService);
w32_close_service_handle(hSCM);
return bResult;
} /* -END- uninstall_service */
/*********************************************************************
*
* Function : privoxy_w32_service_start
*
* Description : This is the entry point function for the service.
* In other words, it's the ServiceMain function.
*
* Parameters : Defined by the Win32 API, but not used here
*
* Returns : void
*
*********************************************************************/
static void WINAPI privoxy_w32_service_start(DWORD dw, LPSTR* pszArgs)
{
int child_id;
/* Arg zero is always the service name, and we need to
* know it when we call RegisterServiceCtrlHandler.
*/
strcpy(szThisServiceName, pszArgs[0]);
/* Tell the SCM we are running */
srv_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
srv_status.dwCurrentState = SERVICE_RUNNING;
srv_status.dwCheckPoint = 0;
srv_status.dwControlsAccepted = SERVICE_ACCEPT_STOP;
srv_status.dwWin32ExitCode = NO_ERROR;
srv_status.dwServiceSpecificExitCode = 0;
srv_status.dwWaitHint = 0;
hSrv_status = w32_register_service_ctrl_handler(szThisServiceName, privoxy_w32_service_handler);
if (!hSrv_status)
{
return;
}
w32_set_service_status(hSrv_status, &srv_status);
#ifndef FEATURE_PTHREAD
child_id = _beginthread(w32_service_listen_loop, 0, NULL);
if (child_id > 0)
#else
#error "FIXME: Do pthread stuff here!"
#endif
{
w32_set_service_status(hSrv_status, &srv_status);
}
else
{
srv_status.dwCurrentState = SERVICE_STOPPED;
srv_status.dwCheckPoint = 0;
srv_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
srv_status.dwServiceSpecificExitCode = ERROR_SERVICE_NO_THREAD;
w32_set_service_status(hSrv_status, &srv_status);
}
}
/*********************************************************************
*
* Function : w32_set_service_cwd
*
* Description : Simple function to change the current directory to
* the same location as the service executable.
*
* Parameters : void
*
* Returns : void
*
*********************************************************************/
void w32_set_service_cwd(void)
{
char exe_name[MAX_PATH+1];
char dir_name[MAX_PATH+1];
char *pszFile = NULL;
/* Get the exe name and path of the service */
if (GetModuleFileName(NULL, exe_name, MAX_PATH))
{
/* Ask the API to tell us where the filename portion starts */
if (GetFullPathName(exe_name, MAX_PATH, dir_name, &pszFile))
{
/* remove the filename from the string */
if (pszFile != NULL)
{
*pszFile = '\0';
/* We have just a directory path now, so make it current */
SetCurrentDirectory(dir_name);
}
}
}
}
/*********************************************************************
*
* Function : w32_service_exit_notify
*
* Description : This is a simple atexit function that is called by the
* C runtime after exit has been called. It allows the
* service code to detect when the app is about to die and
* send an quick notification to the SCM that the service
* now stopped.
*
* Parameters : void
*
* Returns : void
*
*********************************************************************/
void w32_service_exit_notify(void)
{
if (hSrv_status != 0)
{
if (srv_status.dwCurrentState != SERVICE_STOPPED)
{
srv_status.dwCurrentState = SERVICE_STOPPED;
srv_status.dwCheckPoint = 0;
srv_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
srv_status.dwServiceSpecificExitCode = ERROR_PROCESS_ABORTED;
w32_set_service_status(hSrv_status, &srv_status);
}
}
}
static void w32_mini_exit(void *p)
{
Sleep(100);
#ifdef _WIN_CONSOLE
exit(0);
#else
PostMessage(g_hwndLogFrame, WM_CLOSE, 0, 0);
#endif /* def _WIN_CONSOLE */
}
/*********************************************************************
*
* Function : privoxy_w32_service_handler
*
* Description : This is the control message handler function for
* the service.
*
* Parameters : dwOpcode
* requested control code sent by SCM
*
* Returns : void
*
*********************************************************************/
static void WINAPI privoxy_w32_service_handler(DWORD dwOpcode)
{
switch(dwOpcode)
{
case SERVICE_CONTROL_STOP:
/* We've stopped
*/
srv_status.dwCurrentState = SERVICE_STOPPED;
srv_status.dwCheckPoint = 0;
srv_status.dwWin32ExitCode = NO_ERROR;
srv_status.dwServiceSpecificExitCode = 0;
/* Maybe there is a more friendly way to stop, but this will do for now! */
w32_set_service_status(hSrv_status, &srv_status);
/* During testing, I kept getting error 109 (ERROR_BROKEN_PIPE) and
* as far as the SCM was concerned the service was still stopping,
* even after the process had disappeared.
*
* It seems that if we call exit in the ServiceMain thread, it causes
* the SCM to not recieve the status we sent in the line above. The
* simple fix was to create a new thread to actually call exit for us
* whilst this thread continues and returns to its caller.
*/
if (_beginthread(w32_mini_exit, 0, NULL) < 0)
{
/* we failed to create the exit thread, so just force an exit here
* and the SCM will just have to go and whistle!
*/
exit(0);
}
break;
default:
break;
}
w32_set_service_status(hSrv_status, &srv_status);
}
#endif /* ifdef _WIN32 */